Ship&#39;s engine-room signal.



APPLIUA'l'lON FILED MAY 2,1913.

Patented Oct. 27, 1914.

2 SHEETSSHEET 1.

F l w INVENTOR [rm/mars 0. K. BOGSTRAND. SHIPS ENGINE ROOM SIGNAL.

APPLICATION FILED MAY 2, 1913.

1,1 15,278, Patented Oct. 27, 1914.

Q 7 Z SHEETS" SHEET 2. IQ I\ 1 BY% -z x f fi I transmiss on means for operatively connectonn K. BOGSTRAND,

OF NEW YORK, N. Y.

SHIPS ENGINE-ROOM SIGNAL.

Specification of Letters Patent.

Patented 0011321191 1.

Application filed May 2, 1913. Serial No. 765,023.

To all whom it may concern Be it known that I, OLE K. BOGSTRAND, a citizen of the United States, and a resident of the city of New York, borough of Brooka signal of the character indicated, embody-' ing indicator instruments and a third member operatively connected with both, of the first-mentioned instruments atdisclose by the operation of the machinery if the direc; tions transmitted through the signal instruments are put into eflect; to provide means for disclosing by the use of said instruments the condition of the machinery of the vessel; and to simplify the construction of the signal mechanism and installation. H

One embodiment of the present invention is shown in the accompanying drawings, in which.

Figure 1 is an assembled view showing in operative relation a bridge signal, an engineroom signal, a ships propeller shaft,'aud a tell-tale device to show the operative direction of rotation ofsaid shaft, together with ing saidp'arts; Fig. 2 is a detail view, on an enlarged scale, of the bridge signa ling instrument, the section being taken on the line 22 in Fig. 3; Fig.3 is a vertical cross section taken on the line 3-3 inFig. 2; Fig. 4 is a cross section taken on the line 4-4: in Fig. 2.

As seen in the drawings, two signal boxes designated respectively by the numerals 9 and 10 are employed. The box 9 is mounted on a pedestal 11 on the navigating bridge of a vessel. The pedestal is preferably hollow to provide for the passage of lead-lines or belts for transmitting the rotation of a wheel 12 to a wheel. 18, and for transmission from a wheel 14 to wheels 15 and 16. The box 9 is provided with a face'dial, suitably subdivided and markedto indicate the orders of the navigator or otlicer in charge of a vessel.

The pointer handle 17 is pivoted on the box 9, concentric, in the manner usual to such sign'al instruments. The wheel '12 is rigidly connected to the shaft 18 forming the pivot for the handle 17. The wheel 12 is preferably provided with sprocket teeth t engage a sprocket chain section 19, the ends whereof are connected to cables 20, the opposite ends of which arc'connected with sprocket chain sections 21 that enfold and engage the sprocket teeth formed on the wheel 13 of the engineers signal instrument, usually located in 'theengine-room of the vessel.

a ltigidly connected to the wheel 13 is a Epointer 22 mounted on a pivot shaft 23 in the box 10. The wheels 12 and 13 are of the same diameter, and. the movement of the @handle 17 and pointer 22 are therefore synchr'onized. The order dial on the box 9 is duplicated in the box-10, hence the order indicated onthe dial of the box 9 is duplicated on the dial of the box 10 whenever the handle 17 on the first-mentioned box is shifted to express the desire and intent of the navigating officer.

To direct the attention of the engineer to the o eration of the signal, a wheel 24, pro- =vide with a series of projections 25, is rigidly mounted on the shaft 23. The pro- -jec-tions 25 ride beneath asniall plunger 26 and a roller 27 carried thereby. The plunger 26 is provided with a yielding trip 28 to en gage a spur 29. The spur 29 is rigidly connected to the stem of a hammer 30 arranged to strike the bell 31. Said bell 31 is eonveniently disposed to the box 10 and to the hammer 30.

It will be observed that if the wheel 24 is rotated, the successive projections 25 passing thereunder operate upon the plunger 26 to vibrate the hammer 30, thereby sounding the bell 81'to arrest the attention of the engineer or assistant. The rotation of the wheel 24. and the movement of the pointer 22 are simultaneous with the rotation of the wheel spectively, the transmission between said wheels being effected by the chain sections 19, the cables 20 the'chain sections 21 and the wheel 13.

As seen by the drawings, the dials on the boxes 9 and 10 are each provided with positions for the handle 17, and the pointer 22, respectively, indicatingthe normal or neutral point. The positions referred to are indicated in the drawings by the word Stop. The dials referred to are also provided with indices to show the direction of operation intended by the navigator. The indices referred to are the words Ahead and Astern, shown as printed on said'dials. From the neutral point Stop, the handle 12 and the movement of the handle 17, re-

is shifted to indicate directions as to the nning ofthe engine to propel the vessel forward or astern by moving said handle 17 to register with one of the indices on the por tion of the dial corresponding with the Ahead or Astern.

The purpose of the wheel 14 is to detect if the indicated signal is followed by the engineer. For this purpose, the wheel 14 is rotatably mounted on a shaft 32 within a box 33. The wheel 14 has extending from the periphery thereof three arms 34, 35 and 36.- The arms 34 and 35 are disposed at equal distances and at opposite sides of the arm-36, and are each provided witha spring 37, by whichsaid arms are drawn away from the arm 36. A; series of-pins 38 are provided to limit the throw ofsaid arms, said pins being spaced-apart to provide for a limited movement. in both directions on the part of the arm 36, and an unlimited movement of the arms 34 and 35 when moved toward said arm- 36. It is the "pur pose of this construction that the arms 34 and 35 shall yield when struck by the trip 39 when said trip is moving past either of said arms toward the arm 36. a

The trip 39 is extended from a weighted plunger '40, which plunger is mounted in a recess 41 formed in a split disk 42. The disk 42 isrigidly mounted on the ships propeller shaft 43.

The wheel 14 is normally held by springs 44 in aposition where the arm 36 is in line with the centers of the ropeller shaft 43 and the'pivot shaft 32 o said wheel.

The wheel 14- is operatively connected with both the wheels 15 and 16 in the boxes 10 and 9, respectively. The wheel 15 is retatively mounted on the shaft 23 in the box 10, and is provided with a pointer 45 rigidly connected therewith, The wheel 16 is similarly mounted being rigidly secured on a sleeve 82 which is rotatively mounted onthe shaft 18. The shaft 18 is provided with a pointer 46 fixedly mounted thereon. The pointers 45 and 46 are each rigidly held in line with a contact bar 47. The bars 47 are each provided with Wi' or blocks 48 and 49. Said blocks are furnis 18d as contact members to electrically connect metallic sectors 50, and peripheral rails 51 thereof, with stationary contact rails 52 at opposite sides of each of the box s 9 and 10.

The pointers 45 and 46, tli. wheel 14, and the intermediate transmission gear are so arranged that when the arm 36 is disposed at one side of the line bisecting the centers of the shafts 32 and 43, the pointers correspond with one of the indices Ahead or Astern. In other words, the mechanism is set, so that as the propeller shaft 43 is rotated to move the vessel ahead, the pointers 45 and 46 in each of the signal boxes-will and the bell 53 continues to ring. time of operation be durin coincide ufith theindex Ahead on thedial of said boxes; This will continueirrespective of the movement of the handle 17, pointer 22 or parts operatively connected therewith, until the propeller shaft is stopped or reversed. When the propeller shaft is stopped, the springs 4'4Will shift the wheel 14 until the arm 36 assumes the vertical position above indicated as being that intersecting the centers of the shafts 32 and43.

The secfors 50 are rigidly mounted on sleeves 82 on the shafts 18 and 23 to move with the wheels 15 and 16. lVhenthe handle 17 and pointer 22 are moved to either of the areas indicated by the Ahead or Astern, the sector 50 connected witlr each is so moved as to place the rail 51 carried thereby opposite one of the rails 52 in the boxes 9 and 10. If the propeller shaft 43 has been moving to propel the vessel astern, and'the handle 17 is moved into the area covered by-the index Ahead, the imme diate effect would be to place the rails 51 on each of the sectors 50-connected with the handle 17 and with the pointer 22, under the block 48 on each of-the connecting bars 47 The above-mentioned disposition of-the sectors completes two distinct electric circuits, the one completed by the sectors and rails in the box 10, operating the sounding bell 53 which is mounted on the boi: 9,- or in any other convenient position sufficiently near the pedestal 11 to be heard by the navi' gating ofiicer.

'or 55 corresponding to the direction of rotation of the shaft 43'continues to shine,

If the daylight, when the circuit embodying the amps 54 and 55 is discontinued, the failure of the engineer to respond to the indicated signal, is'detected by the ringing of the bell 53.

The battery or electric source 60 shown in Fig. 1 of the drawings is preferably distinct from the battery or electric source 61' shown in Fig. 2 of the drawings. The circuit including the latter battery or dynamo, as the case may be, is uninterrupted when the contact bar 47 closes the circuit through the lamps 54, said circuit being completed by means of Wires 62, 63 and 64. if the lamp 55 isilluminated, the circuit includes the wires 65, 66 and 64.

To indicate to navigating officer the fact that thewh'eel 121s rotating, the shaft 3 stationary circuit terminal members; a circuit-clos'ure member fixedly mounted upon said shaft for engaging said movable terminal member and one of said stationary terminal members when said terminal members are in juxtaposed relation; a plurality of electric circuits, each circuit incorporating said movable terminal member and one of said stationary terminal members; and a OLE K. BOGSTRAND.

Witnesses:

E- F; MURDOCK, i PHILIP D. ROLLHAUS.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

